Five different colored eggs are put in a clear net bag. The performer explains that inside one egg is a gold ring or a bill. Four spectators freely pick an egg each, the last egg is left to the performer. Each spectator opens his egg to reveal nothing. When the performer's egg is opened it has the gold ring or the bill.

Show the audience a small box with two balls inside. Next hand the box out to a spectator challenging him, in ten seconds, to manage to put one of the balls on the right side, and the other on the left side. He will never manage, and you will have won the bet.